Home / 30,867.21-42,596.70-16,720.05

Finding the Fourth Proportional to 30,867.21, 42,596.70 and 16,720.05

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Solution

The fourth proportional to 30,867.21, 42,596.70 and 16,720.05 is: 23,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867.21 : 42,596.70 = 16,720.05 : x
  2. Step 2: Convert to fraction form
    30,867.21/42,596.70 = 16,720.05/x
  3. Step 3: Cross multiply
    30,867.21x = 42,596.70 × 16,720.05
  4. Step 4: Simplify right side
    30,867.21x = 712,218,953.84
  5. Step 5: Solve for x
    x = 712,218,953.84/30,867.21
  6. Step 6: Final answer
    x = 23,073.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.